win: allow dynamic switch dark mode

Zhao Yuhang

2023-12-22 e33059ee1ef7e1be07490ad0245676ded42589f4

 src/quick/quickitemdelegate_p.h

@@ -39,6 +39,7 @@
        void setCursorShape(QObject *host, Qt::CursorShape shape) const override;
        void restoreCursorShape(QObject *host) const override;
        void setWindowFlags(QObject *host, Qt::WindowFlags flags) const override;
        void bringWindowToTop(QObject *host) const override;
    };

}